MIDI full sysex control, a few Midi Control Change for basic controls.
Sounds and library can be saved to standard Midi dump.

MEMORY:

- 128 ROM presets
- 100 RAM slots
- 100 COMBINATIONS

RAM can be doubled using memory card model Korg SRC-512 also used by other Korg synthesizer including famous mono V.A Prophecy synth. Battery replacement: just open the rack, replace the CR-2016 (3V) into dedicated holder - click LEFT to magnify -

MAINTENANCE & MODDING module 03rw is very reliable, never had any troubles: maybe tact switches can be replaced after some time.